718181001216 has 864 divisors, whose sum is σ = 2651982016320. Its totient is φ = 182758146048.

The previous prime is 718181001203. The next prime is 718181001217. The reversal of 718181001216 is 612100181817.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (718181001217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 791819835 + ... + 791820741.

It is an arithmetic number, because the mean of its divisors is an integer number (3069423630).

Almost surely, 2^718181001216 is an apocalyptic number.

718181001216 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718181001216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1325991008160).

718181001216 is an abundant number, since it is smaller than the sum of its proper divisors (1933801015104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

718181001216 is a wasteful number, since it uses less digits than its factorization.

718181001216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 36.

The spelling of 718181001216 in words is "seven hundred eighteen billion, one hundred eighty-one million, one thousand, two hundred sixteen".